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Northern California Medical Assoc Inc

Rheumatology Physician in Santa Rosa, CA · enumerated 2019 · authorized official Ruth Skidmore, Chief Executive Officer.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1891344305

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Registry record

Entity type Organization (Type 2)
Legal business name Northern California Medical Assoc Inc
Practice address 4690 Hoen Ave, Santa Rosa, CA, 95405
Phone (707) 573-6942
Fax (707) 575-6038
Enumeration date Sep 6, 2019
Last updated in NPPES Sep 6, 2019

Taxonomy & classification

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Ruth Skidmore
Title Chief Executive Officer
Phone (707) 573-6933

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2019-09-06. Verify at npiregistry.cms.hhs.gov.
Where is Northern California Medical Assoc Inc located?
The practice location on file with NPPES is in Santa Rosa, CA.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-09-06.